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Finding the Fourth Proportional to 570,303.84, 855,066.92 and 289,279.20

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Solution

The fourth proportional to 570,303.84, 855,066.92 and 289,279.20 is: 433,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,303.84 : 855,066.92 = 289,279.20 : x
  2. Step 2: Convert to fraction form
    570,303.84/855,066.92 = 289,279.20/x
  3. Step 3: Cross multiply
    570,303.84x = 855,066.92 × 289,279.20
  4. Step 4: Simplify right side
    570,303.84x = 247,353,074,564.06
  5. Step 5: Solve for x
    x = 247,353,074,564.06/570,303.84
  6. Step 6: Final answer
    x = 433,721.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.